CVE-2026-88857

CRITICALPre-NVD 9.49.4
EchelonGraph scoreLOW confidence

This critical-severity CVE scores 9.4 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:joomla
Trending — 3 sources updated this week
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 9.4Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7 - The extensions saveWatermark() copied an uploaded file into a web-accessible directory using the client-supplied filename exactly as sent, with no extension check, no content check, and no filename sanitisation of any kind. An authenticated core.manage user could upload a .php file disguised with an image Content-Type header and execute it directly by requesting the resulting path.

CVSS v3
9.4
EG Score
9.4(low)
EG Risk
42(Track)
EG Risk 42/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity94% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

Published

September 20, 2026

Last Modified

September 21, 2026

Advisory Details (1)

Auto-updated Sep 20, 2026
No patch confirmed yet.
generic

OrdaSoft Web Design and Web Development - Joomla, Drupal, WordPress

https://www.OrdaSoft.com/

Vendor Advisories for CVE-2026-88857(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 12× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-21 16:35 UTCEG score recompute
  2. 2026-09-21 16:35 UTCGHSA enrichment
  3. 2026-09-21 16:20 UTCGHSA enrichment
  4. 2026-09-21 12:10 UTCGHSA enrichment
  5. 2026-09-21 08:00 UTCGHSA enrichment
  6. 2026-09-21 03:50 UTCGHSA enrichment
  7. 2026-09-20 23:41 UTCGHSA enrichment
  8. 2026-09-20 19:31 UTCEG score recompute
  9. 2026-09-20 19:31 UTCGHSA enrichment
  10. 2026-09-20 18:17 UTCEG score recompute
  11. 2026-09-20 18:03 UTCEG score recompute
  12. 2026-09-20 18:01 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2026-88857?
CVE-2026-88857 is a critical vulnerability published on September 20, 2026. Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7 - The extensions saveWatermark() copied an uploaded file into a web-accessible directory using the client-supplied filename exactly as sent, with no extension…
When was CVE-2026-88857 disclosed?
CVE-2026-88857 was first published in the National Vulnerability Database on September 20, 2026, with the most recent update on September 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-88857?
CVE-2026-88857 has a CVSS v4.0 base score of 9.4 (CNA self-assessment; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-88857?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-88857, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-88857

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